The Devil's Causeway is one of Colorado's most exhilarating and famous hikes. The adventure culminates in a heart-pounding traverse of a 50-foot-long rock bridge, which is only a few feet wide with sheer, thousand-foot drop-offs on both sides. Safely crossing the Causeway is a true adrenaline rush and an unforgettable accomplishment. The surrounding views in the Flat Tops Wilderness are equally spectacular.